High tap density microparticles of selenium-doped germanium as a high efficiency, stable cycling lithium-ion battery anode material
- 9 February 2015
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry A
- Vol. 3 (11), 5829-5834
- https://doi.org/10.1039/c5ta00319a
Abstract
Slurry cast electrodes with μm-sized Ge0.9Se0.1 particles cycle stably at ∼800 mA h g−1 with ∼99.9% efficiency for 900 1C-rate cycles while electrodes with μm-size pure Ge particles lose 1/3rd of their capacity after five C/5 cycles. The difference is attributed to an inactive glassy Li–Se–Ge phase.Keywords
Funding Information
- Welch Foundation (F-1131, F-1436)
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